分别以小麦持久条锈病抗源品种89144-2-3-11-2、89144-2-14-4-1-2为父本，感病小麦品种铭贤169为母本进行常规杂交，F1代种子单粒播种，在F2代成株期进行芒的分离遗传分析。结果表明，供试顶芒品系和全芒小麦杂交后，2组合F2代群体芒的性状分离均符合1∶2的理论比例，全芒对顶芒均为显性，且全芒受1对显性基因的控制。这是否说明小麦芒性或顶芒还存在隐性性状的可能，抑或与该小麦材料是外源DNA导入小麦的变异后代有关，需要进一步研究。

89144-2-3-11-2 and 89144-2-14-4-1-2 were used as male parents， and Mingxian 169 was used as female parents for conventional hybridization. Seeds of F1 generation were sown in single seed， and the separation and genetic analysis of mangans were carried out at the plant growth stage of F2 generation. The results showed that after the hybridization of apical and total awn strains and total awn wheat， the traits of awn in F2 generation population of 2 combinations were all in accordance with the theoretical ratio of 1∶ 2， the awn was dominant to total awn， and the total awn was controlled by a pair of dominant genes. Whether this indicates the possibility of recessive traits in wheat awn or apical awn， or whether this wheat material is related to the mutant offspring of imported wheat DNA， needs further study.

S512.1

甘肃省农业科学院科研条件建设及成果转化项目(现代生物育种)“粮饲兼用作物种质鉴定与品种选育”(2019GAAS07)、 “小麦分子育种平台创建与品种选育”(2019GAAS05)。